High quality 1-8S Battery Voltage Tester & Low Voltage Buzzer Alarm

Specification:

Use for 1-8S Lipo/Li-ion/LiMn/Li-Fe

Voltage detection precision: +_0.01V.

Unit voltage display range: 0.5~4.5V

Total voltage display range: 0.5~36V

1S test mode voltage range: 3.7~30V

Low voltage alarm mode for 2-8S

Alarm set value range:OFF~2.7~3.8V

Note:

When the voltage is below the set value, it will buzzer with red LED light. 
Pre-set value is 3.3V. Just push a key to change the voltage settings and the data will be saved.